US Bridges

Army Post RD over Ornery Creek

Fair

Polk County, Iowa · Army Post over Ornery Crk · Structure no. 000000000505435

Built
1956
69 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
146 ft
1 main span
Daily traffic
349
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Army Post RD over Ornery Creek is a concrete culvert carrying Army Post RD over Ornery Creek in Polk County, Iowa. It was built in 1956, so it is 69 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 349 vehicles a day, roughly 8% of them trucks, projected to reach 349 by 2043. The structure is 146 ft (44.5 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesArmy Post RD
CrossesOrnery Creek
LocationArmy Post over Ornery Crk
RouteCity Street 0
StateIowa
Coordinates41.52656, -93.75214
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length146 ft (44.5 m)
Longest span20 ft (6.1 m)
Deck width25 ft (7.6 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic349 (2022)
Projected traffic349 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Army Post RD over Ornery Creek built?

It was built in 1956, making it 69 years old in 2025.

What condition is Army Post RD over Ornery Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does Army Post RD over Ornery Creek carry?

About 349 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Army Post RD over Ornery Creek?

The structure is 146 ft (44.5 m) long with a longest span of 20 ft (6.1 m) and a deck 25 ft wide.

Who owns Army Post RD over Ornery Creek?

It is owned by the City or Municipal Highway Agency.